Anonymous asked in Science & MathematicsAstronomy & Space · 1 decade ago

How do people expect to reach the stars one day? Seems impossible to me.? life span, food supply, fuel supply, collision with small objects at high speed, computer failure, etc., etc.

25 Answers

  • 1 decade ago
    Best Answer

    One way to reach the stars is to create pre-colonization vessels with sustainable habitats with everything needed for future planet colonization with the human colonists, and all the needed life forms stored as frozen fertilized eggs and seeds. Send them out to every possible destination controlled by multiply redundant computer systems. The AI's would wait until a star was reached and check out the environment for livable planets. If none, keep going to the next star. If habitable, select a suitable planet, and take up orbit. Plant the first vegetation and animal life (legumes, wheat and corn, fruits and veggies, bees, and worms on land, plankton and shrimp in water) on the planet's surface. Wait. Plant the next round of vegetation and animal life. Wait. Begin growing human beings and educating them to the necessary level. Colonize the surface with humans.

    ;-D Do humans deserve to survive?

  • 1 decade ago

    I agree it does seem relatively impossible.

    If humanity could manufacture a self-sufficient suppliers of food and fuel there may be some possibility.

    Also, we would need to find someway to reach insanely faster speeds. Rockets will never get us as fast as we would need to go for astronauts to reach that far out within thier lifetime.

    I believe with advanced mathematics we could avoid collisions though. And we could have plenty of backup systems to be a fall back for computer failure.

    If it will be possible, it is probably very very long into the future. Centuries.

    Perhaps it is just completely inconcievable and will remain that way, no one really knows at this point.

  • 1 decade ago

    According to what we know about physics and technology this would indeed be nearly impossible. Even with our best technology we could achieve a velocity of only about 1/10,000 the speed of light. Since the nearest star is 4.5 lightyears away this would take 450,000 years. Not only is this well beyond the lifetime of one person but it would create problems with fuel as well. Without much sunlight between stars you would need some way to provide heat, light, and electricity. Radioactive fuel would be spent within that time. So, this is a problem.

    You could send an unmanned probe but it would have to be much, much more reliable than any machine ever created to still be functioning after that much time. Some science fiction authors have suggested sending unmanned probes with fertilized embryos on board then using some kind of artificial womb to create babies on arrival. These babies would eventually reach adulthood and become a colony.

    Even the theoretical engines such as a Bussard Ramjet could only reach perhaps 1/10th the speed of light. This is quite complicated however as subatomic particles in the interstellar spaces would be struck at high speed and have radiation effects. This would require heavy shielding in front and make more weight that needed to be pushed. It has also never been shown how such a vehicle could be practical with such extreme magnetic fields. At 1/10th the speed of light relativistic effects like time dillation do not apply so the trip would take 45 years. The best current drives we have are ion engines which can thrust for a long period of time but they provide very little thrust. You can't sidestep basic physics with an ion engine either since these require both power and a reaction fuel. Eventually even an ion engine will run out of either power or fuel.

    To make space travel really practical we would need some kind of new theory that would allow faster than light travel. Current Relativistic theories don't allow that. Currently, as far as we know it would indeed be impossible. Light does not travel instantly to the nearest stars. This is a confusion of relativistic effects. Objects which have mass are effected by relativity; light which has no mass is not. In other words, if you accelerate an unstable isotope to near lightspeed you will indeed observe that the half-life of radioactive decay increases as time slows down for the particle. It is not simply a matter of time, money, or effort. Currently we simply don't know of any possible way to get around the speed of light limitation. More powerful engines will not help.

    Comparisons with things like ocean travel and flight are not really accurate. We knew that we could travel faster over the oceans if we had a power source. Likewise we could easily observe birds in flight and know that it could be done. It isn't like we have observed anything traveling between stars or even have a theory that would allow us to go that fast with enough power. A closer analogy, I suppose, would be traveling faster than the speed of sound however, again, this is not accurate because we had bullets and cannon shells that traveled supersonic. So, we knew it was possible. In contrast, even with our most power accelerators we've never been able to propel even a tiny electron faster than the speed of light. Nothing that we've observed indicates that it is possible.

    The problem with the idea of wormholes is that these are based on a side effect of a theoretical object, a black hole. We don't actually know that black holes exist although there is evidence for energetic phenomenon that would require densities greater than neutron degenerate matter. Of course, this might simply be quark degenerate matter. Anyway, assuming that black holes did exist you would need a very special kind in order to have a wormhole that you could actually go through. This blackhole would have to be in the shape of a doughnut and would have to be large enough that you wouldn't get torn apart by tidal forces as you passed through the center. This requires an extreme amount of mass, an entire galaxy's worth. So, this is unlikely.

    The notion that nothing is impossible is not accurate at all. There are many things that are impossible. No one has ever figured out a way to build a perpetual motion machine. As far as we know, this is impossible as is reversing entropy and measuring more accurately than the Uncertainty Principle would allow.

  • Right now, it does seem impossible for all the reasons you named, but some people dream about going to the stars. Dreams are the only thing that has caused a difference in the world. Eventually the dreamers will cease to dream and become builders of the Reality. Right now the dreamers are building new technologies to get us to the stars. The stars may not be today's Reality, but I'm sure it's a Reality for the future.

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  • bohnen
    Lv 4
    3 years ago

    action picture star sign Aries at the instant are not the main sentimental of the zodiac signs and indicators. As a fire sign ruled by using Mars the planet of warfare, they dislike something sentimental. So forget the gorgeous kitten calendar and placed away the cuddly toys, Aries in simple terms hate those issues. yet in spite of this, Aries savour paintings and something that demands ability to make. they even have an interest in issues made out of metallic. They love nature and pink is their governing shade. fantastic pink flowers are consequently a impressive present for the fiery woman Aries etc-

  • Anonymous
    1 decade ago

    Impossible is such a harsh word. History has pr time and time again that the impossible is quite often possible. wat often happens is some one discovers the key and once that door is unlocked then exponential growth occurs. i.e aircraft 1903- 1917

    In interstellar travel the key is extremely high velocities. One of the almost forgotten things that extremely high velocities will do is significantly slow down the aging process of the astronauts. If Einstein is correct they would reach the stars with the same crew that they left Earth with.

  • Anonymous
    1 decade ago

    A Star is just a body of plasma that creates energy through nuclear fusion. NASA may send crafts to observe them from a distance but I doubt they will ever try to send people there. The sun is a star and it not like they're trying to fly people into it. Its 93 million miles away and its pretty hot here already.

  • 1 decade ago

    well who knows what kind of technology we will develop in the future or what kind of transportation system? Right now it does seem impossible. It takes over two years to get to Mars, so AT THE MOMENT a manned space flight to Mars is out of the question, but who knows what we will invent or discover? Maybe even Warp Drives or Dilithium Crystals?

  • Anonymous
    1 decade ago

    How an unmanered machine would tells an exact bound with all stars, instaed of cluster of a foreign and ancient trail of the source of the heaven, instead of Galxies, Nebulaes and yes MilkyWay. What that for you in the proxima centauty, epsilon lexicon somehow ????

    time : now

  • Anonymous
    1 decade ago

    lol, omg.

    sry wiizardmannn, but teleporters are sci-fi.

    even if we get within 100 miles of a star, we'd problably burn up before we can get close enough. And no, the best chance of you getting close to a star is if computers put you in a "energy-friendly" state, like unconciousness, or a freezing of the body to preserve it without the need for energy on the longtrip.

  • 1 decade ago

    I am sure that way back when in the times of Galileo, it was thought we could never reach the moon. Have you followed news on NASA lately? We've done that plus many other great accomplishments. Still seems impossible?

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